Endeavour launch: space tourism and the future of travel

Space Adventures remains the only company to have sent paying travellers into
orbit. On its next voyage to the International Space Station, potential
clients are invited to become the first private citizen to walk in space ("Extra
Vehicular Activity"). Anyone interested would be required to pay an
additional $15 million (£9.6m) for the privilege of spending one-and-a-half
hours outside the space station. The company also hopes tempt one lucky
punter to join them for a circumnavigation of the moon. The price tag? $100
million (£64 million).